The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Niche width collapse in a resilient top predator following ecosystem fragmentation
Open accessAbstract
Much research has focused on identifying species that are susceptible to extinction following ecosystem fragmentation, yet even those species that persist in fragmented habitats may have fundamentally different ecological roles than conspecifics in unimpacted areas. Shifts in trophic role induced by fragmentation, especially of abundant top predators, could have transcendent impacts on food web architecture and stability, as well as ecosystem function. Here we use a novel measure of trophic niche width, based on stable isotope ratios, to assess effects of aquatic ecosystem fragmentation on trophic ecology of a resilient, dominant, top predator. We demonstrate collapse in trophic niche width of the predator in fragmented systems, a phenomenon related to significant reductions in diversity of potential prey taxa. Collapsed niche width reflects a homogenization of energy flow pathways to top predators, likely serving to destabilize remnant food webs and render apparently resilient top predators more susceptible to extinction through time.
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Cites
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Predicting extinction risk in declining species
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Cited by
Jackson, A. L., Inger, R., Parnell, A. C., & Bearhop, S. (2011) · Journal of Animal Ecology · doi:10.1111/j.1365-2656.2011.01806.x · Cited by 3,231
CAN STABLE ISOTOPE RATIOS PROVIDE FOR COMMUNITY-WIDE MEASURES OF TROPHIC STRUCTURE?
Layman, C. A., Arrington, D. A., Montaña, C. G., & Post, D. M. (2007) · Ecology · doi:10.1890/0012-9658(2007)88[42:csirpf]2.0.co;2 · Cited by 1,745
Self-citationApplying stable isotopes to examine food‐web structure: an overview of analytical tools
Layman, C. A., Araujo, M. S., Boucek, R., Hammerschlag‐Peyer, C. M., Harrison, E., Jud, Z. R., Matich, P., Rosenblatt, A. E., Vaudo, J. J., Yeager, L. A., et al. (2012) · Biological Reviews · doi:10.1111/j.1469-185x.2011.00208.x · Cited by 1,355
Self-citationThe ecological causes of individual specialisation
Araújo, M. S., Bolnick, D. I., & Layman, C. A. (2011) · Ecology Letters · doi:10.1111/j.1461-0248.2011.01662.x · Cited by 1,074
Self-citationLindo, Z., Whiteley, J., & Gonzalez, A. (2012) · Global Change Biology · doi:10.1111/j.1365-2486.2012.02725.x · Cited by 92
Metadata
- Authors
- Layman, C. A., Quattrochi, J. P., Peyer, C. M., & Allgeier, J. E.
- Venue
- Ecology Letters
- Publisher
- Wiley
- Published
- 2007-07-31
- Volume
- 10
- Issue
- 10
- Pages
- 937-944
- ISSN
- 1461-023X (ISSN-L)
- 1461-0248
- OpenAlex
- W2141079829
- Cited by
- 581
- References
- 8
- FWCI
- 16.21
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Layman, C. A., Quattrochi, J. P., Peyer, C. M., & Allgeier, J. E. (2007). Niche width collapse in a resilient top predator following ecosystem fragmentation. Ecology Letters. https://doi.org/10.1111/j.1461-0248.2007.01087.x
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
